Like others here, I store things in my basement in see through totes. I measured and bought small totes all the same size that would best utilize the space. By keeping them small, I keep things better organized. On the door side, the totes to my right keep everything I need to set up once I arrive. The totes to my left is where I keep decorations and electrical items.
The totes on my curb side of the basement is where I keep spare parts and maintenance items. I also keep my tools there. I also have yellow color totes that keep all my sanitation stuff.